Hosta sieboldiana var. elegans (Giant blue hosta)

Botanical name

Hosta sieboldiana var. elegans

Other names

Giant blue hosta, Hosta glauca, Hosta 'Blue Angel', Hosta 'Robusta', Hosta 'Elegans'

Genus

Hosta Hosta

Species

H. sieboldiana var. elegans - H. sieboldiana var. elegans is a clump-forming perennial with large, rounded, heart-shaped, grey-blue leaves and spikes of lilac-tinged, trumpet-shaped, white flowers in late summer.

Foliage

Deciduous

Habit

Clump-forming

Awards

RHS AGM (Award of Garden Merit)

Colour

Flower

Pale-purple, White in Summer

Foliage

Silvery-grey, Blue in Summer

How to care

Watch out for

Specific pests

Slugs , Snails , Vine weevil

Monthly care advice

Where to grow

Hosta sieboldiana var. elegans (Giant blue hosta) will reach a height of 1m and a spread of 1m after 2-5 years.

Suggested uses

City, Cottage/Informal, Flower Arranging, Beds and borders, Ground Cover, Containers, Underplanting

Cultivation

Plant in fertile and moist, but well-drained, soil sheltered from cold, dry winds. Grows well in slightly acid or neutral soils, but will also grow in alkaline soils if enriched. Shallow, chalky soils can cause leaves to yellow. Partial shade is best, but

Soil type

Clay, Loamy

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Neutral

Light

Partial Shade

Aspect

North, East, West

Exposure

Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

USDA zones

Zone 10, Zone 9, Zone 8, Zone 7, Zone 6

Defra's Risk register #1

Plant name

Hosta sieboldiana var. elegans (Giant blue hosta)

Common pest name

Scientific pest name

Hosta virus X

Type

Virus or Viroid

Current status in UK

Present (Limited)

Likelihood to spread in UK (1 is very low - 5 is very high)

2

Impact (1 is very low - 5 is very high)

3

General biosecurity comments

Virus affecting Hosta; present in the UK since at least the early 2000’s. Mechanically transmitted so spread can be reduced by good hygiene practices and use of healthy propagating material within the industry.

About this section

Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.

Traveling or importing plants? Please read "Don't risk it" advice here

Suspected outbreak? Click here for contact details to report to the relevant authority.

Date updated: 7^th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/